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Title: VRI Photometry of M67 for CCD Standardization at 2.3m VBT
Authors: Bhat, P. N
Singh, K. P
Prabhu, T. P
Kembhavi, A. K
Keywords: Open clusters;M67—photometry—CCD calibration
Issue Date: 1992
Publisher: Indian Academy of Sciences
Citation: Journal of Astrophysics and Astronomy, Vol. 13, No. 4, pp. 293 - 305
Abstract: We present the results from CCD photometry in the V, R and I bands, of the ‘Dipper Asterism’ region of the open cluster Μ67 based on observations carried out at the prime focus of the 2.3 m Vainu Bappu Telescope of the Vainu Bappu Observatory, Kavalur. The CCD parameters like the system gain and the readout noise are measured using several flatfield frames taken through the standard I filter. The CCD chip is calibrated using the photometric standards in the field and linear colour transformation relations are derived. Also a few new VRI photometric measurements are reported for the members of the cluster.
Appears in Collections:IIAP Publications

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